A drink for moderating blood glucose levels produced by a meal in a human subject suffering diabetes or IGT the drink comprising: at least one water soluble or water dispersible material selected from the group consisting of amino acids, peptides and proteins in a total amount of at least 8g on a dry weight basis per serving of drink; aqueous liquid in an amount of from 70ml to 400ml per serving, and fenugreek fibre in an amount in the range of from 1g to 15g.